Decoupling the metal insulator transition and crystal field effects of VO₂.

ABSTRACT: VO₂ is a highly correlated electron system which has a metal-to-insulator transition (MIT) with a dramatic change of conductivity accompanied by a first-order structural phase transition (SPT) near room temperature. The origin of the MIT is still controversial and there is ongoing debate over whether an SPT induces the MIT and whether the T_c can be engineered using artificial parameters. We examined the electrical and local structural properties of Cr- and Co-ion implanted VO₂ (Cr-VO₂ and Co-VO₂) films using temperature-dependent resistance and X-ray absorption fine structure (XAFS) measurements at the V K edge. The temperature-dependent electrical resistance measurements of both Cr-VO₂ and Co-VO₂ films showed sha

SUBMITTER: Hwang IH 

PROVIDER: S-EPMC7862372 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature